Re: Insert lines at begin of file with writefile

2017-05-30 11:21 GMT+03:00 Ni Va <nivaemail@gmail.com>:
> Hi,
>
>
> Is that a way to tell writefile() func to append lines at the beginning of file?

Just read the whole file, prepend and then write the whole file. In
any case I do not know a way to actually prepend bytes to the file: if
you seek to the end of file (or open it in append mode) and start
writing to it you get appending. If you seek to the start and start
writing you will just overwrite first bytes. So programming languages
do not have "prepending" abstraction because it is not supported by
the OS and thus is going to either cost very much or have problems
like loosing data on crashes.

>
> Thank you
> Niva
>
> --
> --
> You received this message from the "vim_use" maillist.
> Do not top-post! Type your reply below the text you are replying to.
> For more information, visit http://www.vim.org/maillist.php
>
> ---
> You received this message because you are subscribed to the Google Groups "vim_use" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.